This was an absurd idea that spawned from flipping through old spaghetti western movie posters. There's a movie called 100 Rifles co-staring Raquel Welch which was gratuitously advertised with a sexy image of Raquel Welch showering under a water tower, with a train full of Mexican soldiers in the background. I loved the idea so much because such a flagrant sale of sex doesn't really fly anymore.
This image is trying to tap into that absurdity. Telling a small story but shoehorning sex into the narrative.